"I am proud of our men and women in uniform for this enormous achievement," said Sen. Mary Landrieu, D-La. "This is a tremendous step forward in the war on terror, and our nation owes a debt of gratitude to those who carried it out. I am relieved that the cause of justice has been served and that the victims of 9-11 can rest assured knowing the man behind the attacks has been killed and caught."

"It's a very significant and crucial milestone in our war on terror, which is ongoing," said Landrieu.

"Unfortunately, it's not over. Osama bin Laden, the leader of Al-Qaeda, is dead, and for that we can breathe some sigh of relief. Justice has been served. We remember the thousands of people who died at the World Trade tower, here at the Pentagon, and in the fields of Pennsylvania, but we must not let our guard down."

"There are new and serious and ongoing threats that are literally coming in daily," said Landrieu, warning that even in very difficult fiscal times, Congress should not cut the Homeland Security budget any more than the 2 percent already executed in the last version of the Continuing Resolution."

"That is about all we can manage," said Landrieu, who serves on the Senate Homeland Security Committee and said that the department's budget was as vital to American security as the Defense Department budget, and that the terrorist threat continues to change and adapt and, "we would be foolish to cut this budget any more."

"Osama bin Laden's death is a major success and a significant victory for America and our allies in the war against terrorism," said Sen. David Vitter, R-La. "We've waited a long time to bring justice to the man who inflicted so much terror on innocent people around the world and I'm glad that day has finally arrived. This victory is all about our brave men and women in uniform and our intelligence community and we need to build on this significant success."

"Bin Laden was the face of Al-Qaeda, and while his death sends a strong message, unfortunately there are more terrorists out there trying to destroy our way of life and our fight must continue," said Vitter.

"The confirmation that Osama bin Laden has been killed is a great victory for our military troops who have been in and around Iraq and Afghanistan fighting to defend the freedoms that we hold dear," said Rep. Steve Scalise, R-Jefferson. "While there are still those around the world who wish to do us harm, this news marks a critical and victorious milestone in the ongoing war on terror."

"The killing of Osama bin Laden closes an important chapter in the war on terror, and while we celebrate the heroic efforts of our men and women in uniform, we also remember the brave souls who gave their lives to get us to this point," said Scalise. "We will never forget the horrific events of September 11, 2001, and we will continue fighting to preserve our freedoms and protect America from those who wish to do us harm."

"Almost a decade after the malicious attack on our homeland and on our countrymen, the mastermind of that attack, Osama bin Laden, has met justice. This is a historic moment in the world's repudiation of terrorism and moves us towards a more peaceful and just world," said Rep. Cedric Richmond, D-New Orleans. "At this time, my thoughts are with the families who lost loved ones during 9/11. This announcement brings us back to that fall day in 2001."

"I applaud President Obama, our intelligence agents, and CIA Director (Leon) Panetta. I also applaud the men and women in the armed services," said Richmond. "From all backgrounds, they all came together for this shared sacrifice and this common mission. This day of justice is a result of their dogged determination and courage. All of America is grateful. It is their continued perseverance and strategy that will continue to root out terrorism and keep America safe."

"For the last 10 years, the brave men and women of our military forces and intelligence services have been determined in their effort to bring justice to those responsible for killing nearly 3,000 people on September 11, 2011. Due to their hard work, sacrifice, and commitment -- Osama bin Laden is dead," said Rep. Jeff Landry, R-New Iberia. "This is not only a victory for America in our continued fight against terror, but also a clear message that America will not stand down and will pursue to the very end those who wish to harm us. May God bless all those in uniform who fight to protect our security and freedom. And may God continue to bless America."

"Osama bin Laden's death is a significant milestone in combating Al-Qaeda. The mastermind of the attacks of September 11, 2001, has been eliminated," said Rep. Charles Boustany, R-Lafayette. "This is a testament to the dedicated work of our service men and women and our intelligence capabilities. More work remains for our armed forces, intelligence community and diplomatic leaders to eliminate terrorist influences and their threat to America. I ask you to join me in expressing my deepest gratitude to our men and women in uniform for their tireless efforts to protect our nation over the past decade. May God continue to bless America."

"I commend President Obama, our national security team, and our men and women in uniform for bringing Osama bin Laden to justice," said Rep. Bill Cassidy, R-Baton Rouge. "The death of bin Laden is a major victory against terror and those who wish harm against peace-loving people around the world. I offer my sincere gratitude to the members of our armed forces and our intelligence community for the sacrifices they have made and will continue to make on behalf of our freedom. This is truly a story of good triumphing over evil and a great day for the American people."

"I want to convey my gratefulness to the brave men and women of our Armed Forces and national security community for their perseverance and unyielding efforts to bring Osama bin Laden to justice," said Rep. Rodney Alexander, R-Quitman. "Evil has met his maker. This is a welcomed victory for liberty around the globe."